Trailer loading ramp



FIG. 1 is a perspective view of a trailer loading ramp showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear end elevation view thereof;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is a front end elevation view thereof.

The side opposite to that shown in FIG. 1 is substantially a mirror image there of. 

The ornamental design for a trailer loading ramp, as shown and described. 